1948069520 has 20 divisors (see below), whose sum is σ = 4529261820. Its totient is φ = 779227776.

The previous prime is 1948069507. The next prime is 1948069523. The reversal of 1948069520 is 259608491.

It can be written as a sum of positive squares in 2 ways, for example, as 498896896 + 1449172624 = 22336^2 + 38068^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1948069523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12175355 + ... + 12175514.

It is an arithmetic number, because the mean of its divisors is an integer number (226463091).

Almost surely, 2^1948069520 is an apocalyptic number.

1948069520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1948069520 is an abundant number, since it is smaller than the sum of its proper divisors (2581192300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1948069520 is a wasteful number, since it uses less digits than its factorization.

1948069520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24350882 (or 24350876 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 1948069520 is about 44136.9405373775. The cubic root of 1948069520 is about 1248.9205657256.

The spelling of 1948069520 in words is "one billion, nine hundred forty-eight million, sixty-nine thousand, five hundred twenty".